题目内容

打开蒸汽阀。

A. Push the button of power supply .
B. Check everything .
C. Start oil pump.
D. Open the steam valve.

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A. Check it carefully.
B. Change it with a new one.
C. Repair it.
D. Send it to the workshop.

A. The oil separator.
B. The oily water separator.
C. The fresh water generator.
D. The exhaust gas boiler.

A. Chemicals.化学品
B. Filters.
C. Fresh water.
D. Sea water.

A. Remove water from oil.
B. Remove impurities from oil.
C. Treat oily water.
D. Clean water.